下面介绍一种导出Excel的方法：
此方法不需要在服务器上安装Excel，采用生成xml以excel方式输出到客户端，可能需要客户机安装excel，所以也不会有乱七八糟的权限设定，和莫名其妙的版本问题。而且此种方法比第二种更快试了下10W条数据（20列）不到10秒（小白pc）。
protected void Btn_Up(object sender, EventArgs e) { Response.Clear(); Response.Buffer = true; Response.AppendHeader("Content-Disposition", "attachment;filename=" + DateTime.Now.ToString("yyyyMMddHHmmss") + ".xls"); Response.ContentEncoding = System.Text.Encoding.UTF8; Response.ContentType = "application/vnd.ms-excel"; this.EnableViewState = false; Hashtable ht = new Hashtable(); try { ht["PayAcc"] = payeeaccno.Value; ht["BgDate"] = rzbDate.Value.Replace("-", ""); ht["EdDate"] = rzEDate.Value.Replace("-", ""); ht["BizBrid"] = bizBrandid; } catch (Exception) { throw; } WithholdingQueryBll wiBill = new WithholdingQueryBll();//数据操作类 int count = 0; DataTable qdp = wiBill.QuerDeductPayee(ht, true, out count);//查询数据，返回DataTable CreateExcel(qdp, "", "xls"); } public void CreateExcel(System.Data.DataTable dt, String TableTitle, string fileName) { //1） 文本：vnd.ms-excel.numberformat:@ //2） 日期：vnd.ms-excel.numberformat:yyyy/mm/dd //3） 数字：vnd.ms-excel.numberformat:#,##0.00 //4） 货币：vnd.ms-excel.numberformat:￥#,##0.00 //5） 百分比：vnd.ms-excel.numberformat: #0.00% StringBuilder strb = new StringBuilder(); DataRow[] myRow = dt.Select();//可以类似dt.Select("id>10")之形式达到数据筛选目的 strb.Append(" <html xmlns:o="urn:schemas-microsoft-com:office:office""); strb.Append("xmlns:x="urn:schemas-microsoft-com:office:excel""); strb.Append("xmlns=" strb.Append("<head> <meta http-equiv='Content-Type' content='text/html; charset=gb2312'>"); strb.Append(" <style>"); strb.Append("body"); strb.Append(" {mso-style-parent:style0;"); strb.Append(" font-family:"Times New Roman", serif;"); strb.Append(" mso-font-charset:0;"); strb.Append(" mso-number-format:"@";}"); strb.Append("table"); strb.Append(" {border-collapse:collapse;margin:1em 0;line-height:20px;font-size:12px;color:#222; margin:0px;}"); strb.Append("thead tr td"); strb.Append(" {background-color:#e3e6ea;color:#6e6e6e;text-align:center;font-size:14px;}"); strb.Append("tbody tr td"); strb.Append(" {font-size:12px;color:#666;}"); strb.Append(" </style>"); strb.Append(" <xml>"); strb.Append(" <x:ExcelWorkbook>"); strb.Append(" <x:ExcelWorksheets>"); strb.Append(" <x:ExcelWorksheet>"); strb.Append(" <x:Name>Sheet1 </x:Name>"); strb.Append(" <x:WorksheetOptions>"); strb.Append(" <x:DefaultRowHeight>285 </x:DefaultRowHeight>"); strb.Append(" <x:Selected/>"); strb.Append(" <x:Panes>"); strb.Append(" <x:Pane>"); strb.Append(" <x:Number>3 </x:Number>"); strb.Append(" <x:ActiveCol>1 </x:ActiveCol>"); strb.Append(" </x:Pane>"); strb.Append(" </x:Panes>"); strb.Append(" <x:ProtectContents>False </x:ProtectContents>"); strb.Append(" <x:ProtectObjects>False </x:ProtectObjects>"); strb.Append(" <x:ProtectScenarios>False </x:ProtectScenarios>"); strb.Append(" </x:WorksheetOptions>"); strb.Append(" </x:ExcelWorksheet>"); strb.Append(" <x:WindowHeight>6750 </x:WindowHeight>"); strb.Append(" <x:WindowWidth>10620 </x:WindowWidth>"); strb.Append(" <x:WindowTopX>480 </x:WindowTopX>"); strb.Append(" <x:WindowTopY>75 </x:WindowTopY>"); strb.Append(" <x:ProtectStructure>False </x:ProtectStructure>"); strb.Append(" <x:ProtectWindows>False </x:ProtectWindows>"); strb.Append(" </x:ExcelWorkbook>"); strb.Append(" </xml>"); strb.Append(""); strb.Append(" </head> <body> "); //strb.Append(" <table> <thead><tr>"); //strb.Append(" <td colspan="" + ds.Columns.Count + "" >"); //strb.Append(TableTitle); //strb.Append(" </td> "); //strb.Append(" </tr>"); //strb.Append(" </thead><tbody><tr>"); strb.Append(" <table> <tbody><tr>"); //写列标题 strb.Append(" <td> <b>" + "交易日期" + " </b> </td>"); strb.Append(" <td> <b>" + "交易时间" + " </b> </td>"); strb.Append(" <td> <b>" + "银行流水号" + " </b> </td>"); strb.Append(" <td> <b>" + "发起方（第三方）流水号" + " </b> </td>"); strb.Append(" <td> <b>" + "收款人账号" + " </b> </td>"); strb.Append(" <td> <b>" + "收款人名称" + " </b> </td>"); strb.Append(" <td> <b>" + "付款人账号" + " </b> </td>"); strb.Append(" <td> <b>" + "付款人名称" + " </b> </td>"); strb.Append(" <td> <b>" + "付款人开户行" + " </b> </td>"); strb.Append(" <td> <b>" + "交易金额" + " </b> </td>"); strb.Append(" <td> <b>" + "交易标志" + " </b> </td>"); strb.Append(" <td> <b>" + "结果信息" + " </b> </td>"); //strb.Append(" <td> <b>" + "付款人户名" + " </b> </td>"); //strb.Append(" <td> <b>" + "成功/失败原因" + " </b> </td>"); strb.Append(" </tr>"); //根据查询出来的字段遍历数据 foreach (DataRow row in myRow) { strb.Append(" <tr>"); strb.Append(" <td>" + row["TRANDATE"].ToString() + " </td>"); strb.Append(" <td>" + row["TRANTIME"].ToString() + " </td>"); strb.Append(" <td style="vnd.ms-excel.numberformat:@">" + row["TRANSEQNO"].ToString() + " </td>"); strb.Append(" <td style="vnd.ms-excel.numberformat:@">" + row["THSEQNO"].ToString() + " </td>"); strb.Append(" <td style="vnd.ms-excel.numberformat:@">" + row["PAYEENO"].ToString() + " </td>"); strb.Append(" <td>" + row["PAYEENAME"].ToString() + " </td>"); strb.Append(" <td style="vnd.ms-excel.numberformat:@">" + row["PAYERNO"].ToString() + " </td>"); strb.Append(" <td>" + row["PAYERNAME"].ToString() + " </td>"); strb.Append(" <td style="vnd.ms-excel.numberformat:@">" + row["PAYERBANK"].ToString() + " </td>"); strb.Append(" <td style="vnd.ms-excel.numberformat:￥#,##0.00">" + row["TRANAMT"].ToString() + " </td>"); strb.Append(" <td>" + row["TRANSTAT"].ToString() + " </td>"); strb.Append(" <td>" + row["REMSG"].ToString() + " </td>"); //strb.Append(" <td>" + row["PAYER_NAME"].ToString() + " </td>"); //strb.Append(" <td>" + row["RET_MSG"].ToString() + " </td>"); strb.Append(" </tr>"); } strb.Append(" </tbody> </table>"); strb.Append(" </body> </html>"); Response.Clear(); Response.Buffer = true; Response.Charset = "GB2312"; //Response.AppendHeader("Content-Disposition", "attachment;filename=" + fileName); Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312"); //设置输出流为简体中文 Response.ContentType = "application/ms-excel"; //设置输出文件类型为excel文件。 this.EnableViewState = false; Response.Write(strb); Response.End(); }